save project

my_music.py

@@ -61,7 +61,14 @@ while True:
                     else:
                     else:
                         play_button = play_img
                         play_button = play_img
                         pygame.mixer.music.pause()
                         pygame.mixer.music.pause()
-
+            if x >120 and x <220 and y>350 and y <400:
+                num-=1
+                if num<0:
+                    num=len(music_list)-1
+                pygame.mixer.music.load(path+"\\"+music_list[num])
+                pygame.mixer.music.play()
+                click=0
+                play_button=stop_img
     if pygame.mixer.music.get_busy() == False:
     if pygame.mixer.music.get_busy() == False:
         pygame.mixer.music.play()
         pygame.mixer.music.play()
 
 
@@ -73,3 +80,12 @@ while True:
     screen.blit(next_img, (420, 350))   # 下一曲
     screen.blit(next_img, (420, 350))   # 下一曲
     # 刷新画面
     # 刷新画面
     pygame.display.update()
     pygame.display.update()
+if x >420 and x <520 and y>350 and y <400:
+                num-=1
+                 if num>len(music_list)-1:
+                    if num <0
+                pygame.mixer.music.load(path+"\\"+music_list[num])
+                pygame.mixer.music.play()
+                click=0
+                play_button=stop_img
+